Home / 860,425.27-1,187,338.13-478,443.85

Finding the Fourth Proportional to 860,425.27, 1,187,338.13 and 478,443.85

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Solution

The fourth proportional to 860,425.27, 1,187,338.13 and 478,443.85 is: 660,225.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,425.27 : 1,187,338.13 = 478,443.85 : x
  2. Step 2: Convert to fraction form
    860,425.27/1,187,338.13 = 478,443.85/x
  3. Step 3: Cross multiply
    860,425.27x = 1,187,338.13 × 478,443.85
  4. Step 4: Simplify right side
    860,425.27x = 568,074,623,776.78
  5. Step 5: Solve for x
    x = 568,074,623,776.78/860,425.27
  6. Step 6: Final answer
    x = 660,225.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.